Home / 27,109.10-40,663.65-18,814.70

Finding the Fourth Proportional to 27,109.10, 40,663.65 and 18,814.70

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Solution

The fourth proportional to 27,109.10, 40,663.65 and 18,814.70 is: 28,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,109.10 : 40,663.65 = 18,814.70 : x
  2. Step 2: Convert to fraction form
    27,109.10/40,663.65 = 18,814.70/x
  3. Step 3: Cross multiply
    27,109.10x = 40,663.65 × 18,814.70
  4. Step 4: Simplify right side
    27,109.10x = 765,074,375.66
  5. Step 5: Solve for x
    x = 765,074,375.66/27,109.10
  6. Step 6: Final answer
    x = 28,222.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.